Pad for pressing machines



June 12, 1928.

J. P. DALY PAD FOR PRESSING MACHINES Filed Sept. 4, 1924 A TTORNE Y.

$ the limit to which the Patented June 12, 1928.

PATENT OFFICE.

JOSEPH P. DAILY, OF SYRACUSE,

THE PROSPERITY COMPANY, INC., 01 SYRACUSE, NEW YORK,

NEW YORK.

A conceonn'rron or PAD FOR PBESSING MACHINES.

Application filed September 4, 1924. Serial No. 735,820.

This invention relates to spring pads for pressing machines as garment and laundry pressing machines and has for its object a ad, in which coil springs are eliminated and 5 in which compressible bellows members are used which can not be compressed beyond a certain point.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed and described.

In describing this invention, reference is bad to the accompanying drawings in which like characters designate corresponding parts in all of the views.

Figure 1 is a plan view partly broken away of a spring pad embodying my invention.

Figure 2 is an enlarged fragmentary sectional view through the pad.

Figure 3 is a fragmentary view of the cylinder of a mangle provided with my pad. As is well lgiown to those skilled in the art, the coiled"springs of spring pads used in garment and laundry pressing machines,

are short lived, for the reason that under the excessive pressure, the springs are comressed beyond their elastic or compression imit and buckle out of shape and become permanently set in a crushed position.

This spring pad is for the pur ose of eliminating this condition, by provi ing a pneumatic or hydraulic spring or a device which acts against a compressible medium where medium can be compressed prevents further compression and ence destruction of the container for the medium.

This spring pad comprises a base-plate 4t and a plurality of bellows members mounted on the base plate and confining a closed chamber for a compressible medium as air, the heads of the bellows members being usually substantially fiat. Preferably, in order 4.5 to avoid a large number of bellows members,

the bellows members are spaced apart and a top plate rests upon the outer ends of the bellows members. The plates are enclosed in a suitable wrapper or wrappers. This so wrapper also embodies a material capable of holding steam. This material islocated between the edges of the top and bottom plates.

The construction of the wrapper forms no part of this invention and any form of wrapper may be used.

1 designates the base plate and 2 the top plate and 3 and 4 are layers of the wrapper.

5 designates the bellows members.

Each bellows member 5 comprises a base 6 and a body member 7 cylindrical in general form, the cylindrical wall being corrugated and the head 8 being flat, this body 5 together with the base 6 confining a closed chamber 9 for a compressible medium as air.

The base 6 is shown as formed with a recess in its upper side and the lowermost corrugation of the body member 5 rests on the bottom 10 of the recess and terminates in an outwardly extending annular flange 11 which abuts the annular wall 12 of the recess forming a tight joint. The base member is also shown as formed with a suitable stem 13 threading into the base 6 and into the base plate. This stem 13 is provided with a suitable passage 14 having a check valve 15 therein. The passage communicating with an inlet 16 by means of which air can be forced under pressure into the chamber 9 from a suitable source of supply as a tank or a pump. All of the bellows may be attached to one source of supply or one pump and have one check valve or all of them.

The top plate 2 is'formed with suitable perforations 17 at intervals permitting the outlet of steam contained within the chamber 18 confined by the base and top plate 1, 2 and the wrapper.

As seen in Figure 3, the bellows members may be used on the cylindrical face of a drum 19 as the drum or roll of a mangle.

In operation, the pad is usually laid on the lower buck of a pressing machine or in the drum of a mangle and when the head is brought down under pressure on the work on the pad or as the work is compressed on the drum, the bellows are compressed against the compressible medium therein until such medium is compressed to its maximum whereupon further compression and hence crushing of the bellows is prevented.

What I claim is:

1. A cushion for a pad of a pressing machine having a base plate comprising a plurality of spaced compressible upright elongated bellows members mounted on the base NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

ion

' plate with their upper ends substantially flat and normally in the same plane.

2. A pad for pressing machines comprising a base plate and a plurality of bellows 5 members mounted on the base plate, and a top plate resting on the outer-ends of the bellows member, the top plate being perforated and the space between the base and the top plates forming a heatin chamber in 10 which the' bellows members are ocated.

3. A pad for pressing machines, comprising a base plate, a bellows member comprising a base member mounted in the base plate an formed with an inlet for a compressible of Onondaga, and in the State fluid and a bod member cylindrical in general form and having a fiat head at its u per end, the base being formed with 2. cy indrical recess in its upper face and the lower corrugation of the body member resting on the bottom of the recess and terminating in an outwardly extending flange abuttin against the annular wall of the recess.

li i1 testimony whereof, I have hereunto signed my name, at Syracuse, in the county of New York, this 20th day of August, 1924.

JOSEPH P. DALY. 

